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Finding the Fourth Proportional to 539,706.42, 744,806.47 and 298,004.27

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Solution

The fourth proportional to 539,706.42, 744,806.47 and 298,004.27 is: 411,252.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,706.42 : 744,806.47 = 298,004.27 : x
  2. Step 2: Convert to fraction form
    539,706.42/744,806.47 = 298,004.27/x
  3. Step 3: Cross multiply
    539,706.42x = 744,806.47 × 298,004.27
  4. Step 4: Simplify right side
    539,706.42x = 221,955,503,635.21
  5. Step 5: Solve for x
    x = 221,955,503,635.21/539,706.42
  6. Step 6: Final answer
    x = 411,252.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.